# Jeffrey Carleton

> Jeffrey Carleton is the co-founder and CEO of Runwise, a New York-based smart-building company that pairs proprietary wireless sensors with cloud software to cut the energy that boilers, cooling, electric and water systems waste. Drawing on seven years spent running 150 New York apartment buildings, he turned a hands-on operator's frustration with 1960s heating controls into a platform now deployed in more than 10,000 buildings, serving roughly 1,000 customers and saving over $100 million in energy costs. In June 2025 Runwise raised a $55 million Series B led by Menlo Ventures, bringing total funding to $79 million, around a thesis Carleton states bluntly: every building needs to be rebuilt with software, not bricks.

- **Role:** Co-Founder & CEO at Runwise
- **Organizations:** Runwise, Beachlane Management, Brown University
- **Nationality:** American
- **Education:** Bachelor's Degree, Business/Managerial Economics, Brown University
- **Known for:** Co-founded and leads Runwise, deployed in more than 10,000 buildings across roughly 10 states., Helped customers collectively save over $100 million in energy costs., Raised a $55 million Series B in 2025 (total funding $79M), led by Menlo Ventures and twice oversubscribed.

## Career timeline

- **earlier** — Earned a Bachelor's degree in Business/Managerial Economics from Brown University.
- **~2010s** — Served as General Manager of Beachlane Management for seven years, overseeing operations and energy management for 150 multifamily buildings in New York City.
- **2010** — Co-founded Runwise (originally building toward smart building controls) with Lee Hoffman and Mike Cook.
- **2021** — Runwise achieved a 21% per-building fossil fuel reduction; platform scaling rapidly across NYC.
- **2024** — Spoke on Runwise insights at Decarb Summits; expanded from heating into cooling, leak and gas detection.
- **2025-06** — Closed a twice-oversubscribed $55M Series B led by Menlo Ventures, bringing total funding to $79M.
- **2025-08** — Featured by CNBC on how Runwise helps real estate portfolios manage record summer heat.

## Achievements

- Co-founded and leads Runwise, deployed in more than 10,000 buildings across roughly 10 states.
- Helped customers collectively save over $100 million in energy costs.
- Raised a $55 million Series B in 2025 (total funding $79M), led by Menlo Ventures and twice oversubscribed.
- Built a vertically integrated platform that installs in a day and typically pays back in under five months.
- Grew the company roughly 30X since its seed round.
- Signed marquee customers including Related, Equity Residential, FirstService Residential, the MTA, Port Authority, National Grid, Rudin and LeFrak.

## Latest updates

- **2025-06** — Runwise closed a $55M Series B led by Menlo Ventures; total funding reached $79M.
- **2025-08** — CNBC profiled Runwise's role in helping landlords manage record summer heat and cooling costs.

## Links

- Website: https://runwise.com
- LinkedIn: http://www.linkedin.com/in/jeffrey-carleton-571894132

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Profile page: https://yespress.io/jeffrey-carleton
Published by YesPress — https://yespress.io
Last updated: 2026-06-11